1201310442 has 24 divisors (see below), whose sum is σ = 2692593540. Its totient is φ = 386628480.

The previous prime is 1201310441. The next prime is 1201310477. The reversal of 1201310442 is 2440131021.

It can be written as a sum of positive squares in 2 ways, for example, as 1190871081 + 10439361 = 34509^2 + 3231^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1201310441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1150159 + ... + 1151202.

Almost surely, 2^1201310442 is an apocalyptic number.

1201310442 is an abundant number, since it is smaller than the sum of its proper divisors (1491283098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201310442 is a wasteful number, since it uses less digits than its factorization.

1201310442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301398 (or 2301395 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1201310442 is about 34659.9255913800. The cubic root of 1201310442 is about 1063.0452485778.

Adding to 1201310442 its reverse (2440131021), we get a palindrome (3641441463).

The spelling of 1201310442 in words is "one billion, two hundred one million, three hundred ten thousand, four hundred forty-two".